run flat GMC CANYON 2021 Owner's Manual

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
178 Driving and Operating
Warning (Continued)
Flowing or rushing water creates strong
forces. Driving through flowing water
could cause the vehicle to be carried
away. If this happens, you and other
vehicle occupants could drown. Do not
ignore police warnings and be very
cautious about trying to drive through
flowing water.
Hydroplaning
Hydroplaning is dangerous. Water can build
up under the vehicle's tires so they actually
ride on the water. This can happen if the
road is wet enough and you are going fast
enough. When the vehicle is hydroplaning, it
has little or no contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to slow
down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet weather
driving tips include:
.Allow extra following distance.
.Pass with caution.
.Keep windshield wiping equipment in
good shape.
.Keep the windshield washer fluid reservoir
filled.
.Have good tires with proper tread depth.
SeeTires 0266.
.Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through mountains
is different than driving on flat or rolling
terrain. Tips include:
.Keep the vehicle serviced and in good
shape.
.Check all fluid levels and brakes, tires,
cooling system, and transmission.
.Shift to a lower gear when going down
steep or long hills.
{Warning
Using the brakes to slow the vehicle on a
long downhill slope can cause brake
overheating, can reduce brake
performance, and could result in a loss of
braking. Shift the transmission to a lower
gear to let the engine assist the brakes
on a steep downhill slope.
{Warning
Coasting downhill in N (Neutral) or with
the ignition off is dangerous. This can
cause overheating of the brakes and loss
of steering assist. Always have the engine
running and the vehicle in gear.
.Drive at speeds that keep the vehicle in
its own lane. Do not swing wide or cross
the center line.
.Be alert on top of hills; something could
be in your lane (e.g., stalled car, crash).
.Pay attention to special road signs (e.g.,
falling rocks area, winding roads, long
grades, passing or no-passing zones) and
take appropriate action.
Winter Driving
Driving on Snow or Ice
Snow or ice between the tires and the road
creates less traction or grip, so drive
carefully. Wet ice can occur at about 0 °C
(32 °F) when freezing rain begins to fall.
Avoid driving on wet ice or in freezing rain
until roads can be treated.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
266 Vehicle Care
FusesUsage
F37 –
F38 –
F39 Auxiliary power outlet 2
F40 –
F41 Auxiliary power outlet 1/ Cigarette lighter
F42 Left power window
F43 Driver power seat
F44 Auxillary power outlet F45 Right power window
F46 Passenger power seat
Relays Usage
K1 Retained accessory power
K2 Run/Crank
K3 –Wheels and Tires
Tires
Every new GM vehicle has high-quality
tires made by a leading tire
manufacturer. See the warranty manual
for information regarding the tire
warranty and where to get service. For
additional information refer to the tire
manufacturer.
{Warning
.Poorly maintained and improperly
used tires are dangerous.
.Overloading the tires can cause
overheating as a result of too
much flexing. There could be a
blowout and a serious crash. See
Vehicle Load Limits 0180.
.Underinflated tires pose the same
danger as overloaded tires. The
resulting crash could cause serious
injury. Check all tires frequently to
(Continued)
Warning (Continued)
maintain the recommended
pressure. Tire pressure should be
checked when the tires are cold.
.Overinflated tires are more likely
to be cut, punctured, or broken by
a sudden impact —such as when
hitting a pothole. Keep tires at the
recommended pressure.
.Worn or old tires can cause a
crash. If the tread is badly worn,
replace them.
.Replace any tires that have been
damaged by impacts with
potholes, curbs, etc.
.Improperly repaired tires can cause
a crash. Only the dealer or an
authorized tire service center
should repair, replace, dismount,
and mount the tires.
(Continued)

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
288 Vehicle Care
7. Remove all the wheel nuts and take offthe flat tire.
{Warning
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
make wheel nuts become loose after
time. The wheel could come off and
cause a crash. When changing a
wheel, remove any rust or dirt from
places where the wheel attaches to
the vehicle. In an emergency, a cloth
or a paper towel can be used;
however, use a scraper or wire brush
later to remove all rust or dirt.
8. Remove any rust or dirt from the wheel bolts, mounting surfaces, and spare
wheel.
9. Install the spare tire.
{Warning
Never use oil or grease on bolts or nuts
because the nuts might come loose. The
vehicle's wheel could fall off, causing a
crash.
10. Put the wheel nuts back on with the rounded end of the nuts toward the
wheel. 11. Tighten each wheel nut by hand. Then
use the wheel wrench to tighten the
nuts until the wheel is held against
the hub.
12. Turn the wheel wrench counterclockwise to lower the vehicle. Lower the jack
completely.
{Warning
If wheel studs are damaged, they can
break. If all the studs on a wheel broke,
the wheel could come off and cause a
crash. If any stud is damaged because of
a loose-running wheel, it could be that all
of the studs are damaged. To be sure,
replace all studs on the wheel. If the stud
holes in a wheel have become larger, the
wheel could collapse in operation. Replace
any wheel if its stud holes have become
larger or distorted in any way. Inspect
hubs and hub‐piloted wheels for damage.
Because of loose running wheels, piloting
pad damage may occur and require
replacement of the entire hub, for proper
centering of the wheels. When replacing
studs, hubs, wheel nuts or wheels, be
sure to use GM original equipment parts.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
296 Vehicle Care
7. Connect one end of the blacknegative (–) cable to the negative (–)
terminal of the good battery.
8. Connect the other end of the black negative (–) cable to the negative (–)
grounding stud for the discharged
battery.
9. Start the engine in the vehicle with the good battery and run the engine at idle
speed for at least four minutes.
10. Try to start the vehicle that had the dead battery. If it will not start after a
few tries, it probably needs service.
Caution
If the jumper cables are connected or
removed in the wrong order, electrical
shorting may occur and damage the
vehicle. The repairs would not be covered
by the vehicle warranty. Always connect
and remove the jumper cables in the
correct order, making sure that the cables
do not touch each other or other metal.
Jumper Cable Removal
Reverse the sequence exactly when
removing the jumper cables. After starting the disabled vehicle and
removing the jumper cables, allow it to idle
for several minutes.
Close the small cover (
1on top of it).
Ensure the locking feature (located inboard)
latches completely with the rest of the
cover.
Towing the Vehicle
Caution
Incorrectly towing a disabled vehicle may
cause damage. The damage would not be
covered by the vehicle warranty. Do not
lash or hook to suspension components.
Use the proper straps around the tires to
secure the vehicle. Do not drag a locked
wheel/tire. Use tire skates or dollies
under any locked wheel/tire while
loading the vehicle. Do not use a sling
type lift to tow the vehicle. This could
damage the vehicle.
Caution
Improper use of the tow eye can damage
the vehicle. If equipped, use the tow eye
to load a disabled vehicle onto a flatbed
tow truck from a flat road surface, or to
move the vehicle a short distance. Use
caution and low speeds. The transmission
must be in (N) Neutral when moving the
vehicle.
GM recommends a flatbed tow truck to
transport a disabled vehicle. Use ramps to
help reduce approach angles, if necessary.
A towed vehicle should have its drive wheels
off the ground. Contact Roadside Assistance
or a professional towing service if the
disabled vehicle must be towed.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
350 Index
Electrical System (cont'd)Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 243
Check Light (Malfunction Indicator) . . . . . 87
Compartment Overview . . . . . . . . . . . . . . . . 237
Coolant Temperature Gauge . . . . . . . . . . . . 85
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 245
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 326
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 242
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . 92
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Power Messages . . . . . . . . . . . . . . . . . . . . . . . . 99
Running While Parked . . . . . . . . . . . . . . . . . 192
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 224
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 337
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . .33
Exterior Cargo Lamps . . . . . . . . . . . . . . . . . . . . 105
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . 102
Exterior Lamps Off Reminder . . . . . . . . . . . . 103 Exterior Lighting Battery Saver . . . . . . . . . . 108
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 243
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Flashers, Hazard Warning . . . . . . . . . . . . . . . . 104
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Fluid
Automatic Transmission . . . . . . . . . . . . . . . 243
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Four-Wheel Drive Transfer Case . . . . . . . . 197
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Forward Collision Alert (FCA) System . . . . . 211
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . 197, 252
Four-Wheel-Drive Light . . . . . . . . . . . . . . . . . . . . 89
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Heated and Ventilated . . . . . . . . . . . . . . . . . . 25
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Economy, Driving for Better . . . . . . . . . . . . 171
Filling a Portable Fuel Container . . . . . . . 216
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 215
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 214
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Low Fuel Warning Light . . . . . . . . . . . . 92, 93
Management, Active . . . . . . . . . . . . . . . . . . . . 191
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 214
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 214
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . . . . 293
Fuses
Engine Compartment Fuse Block . . . . . . . 260
Fuses and Circuit Breakers . . . . . . . . . . . . . 259
Instrument Panel Fuse Block . . . . . . . . . . . 264
G
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
GaugesEngine Coolant Temperature . . . . . . . . . . . . 85
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 84